Door lock



J 1953 G. w. WARDWELL, JR 5 02 5 noogmcx 4 filed Nov. 26, 194 2 Sheets-Sheet 1 II IL Snoentor G. w. WARDWELL, JR 2,640,345

June 2, 1953 DOQRV LOCK 2 Sheets-Sheet 2 Filed Nov. 26, 19491 Patented June 2, 1953 UNITED STATES TENT OFFICE DOOR LOCK Application November 26, 1949, Serial No. 129,607

(Cl. Wi 146) 8 Claims.

1 This invention relates to door locks, and more particularly to a lock mounted in a cylindrical case designed to be inserted in a bore in the edge of .a door, and which case is adapted to pass through an opening in a cylindrical tube which may be inserted in a bore through the face of the door, the present application being a continu ation in part of my co-pending application, Serial No. 668,401, filed May 9, 1946, now Patent No. 2,497,750, issued February 2, 1950.

In tubular looks, it is more or less customary to employ a bolt case which is inserted in a bore made through the edge of the door and to pass through this case a spindle connected to knobs at the inner and outer faces of the door, which spindle is designed to actuate the bolt-retracting mechanism. As the spindle is aligned by the cylindrical case in which the knobs are carried, it sometimes occurs that this knob case does not stand in the proper .position with respect to the bolt mechanism case and, in that event, the spindle will tend to bind. This often is a result of the fact that the knob spindle is not accurately placed at right angles to the direction of reciprocation of the bolt, but may also be due to other errors in the mounting of the parts.

Moreover, it is desirable that a firm and rigid connection be made between the two housings or casings, that is, between the housing which carries the bolt and bolt-actuating mechanism and the housing which carries the knobs, and it is also desirable that the lock be universal in charactor in that it maybe capable of being mounted on a door. of either hand and which opens in either direction without any alteration in the position of the parts. That is to say, the lock should be capable of being used with a door of either hand and bevel without removing any parts from the case and changing their position.

1 achieve the above objects in the structure disclosed in the resent application and also provide novel means for clogging the outside knobagainst rotation, but at the same time permitting rotation of the inner knob spindle so that this spindle may be rotated either by the inner knob or by a key in the outside of the door in order that even though the outside knob be dogged, the

door may be entered by one equipped with the to bind or fail to operate freely.-

A Still further object of the invention is to provide a. door lock of the character described which will bev provided with novel means. for dogging the outer knob against. rotation.

Still another object-of the invention is the provision of a door lock having a spindle rotated by the inner knob and av sleeve on this spindle adapted to be rotated by the outer knob, the sleeve and the spindle being longitudinally movable so that the outer knoband sleeve may be held against rotation while permitting the spindle and inner knob to turn, it being understood that rotation of the spindle serves to retract the bolt.

To these and other ends the invention consists in the novel features and comb na ion of par to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is a sectional view of a door lock embodying my invention, the lock being shown in mounted position u on a door;

Fig. 2 is a partial sectional view on line 22 of Fi 1;

Fig. 3 is a sectional view on line 33 of Fig. 1;

Fig. 4 is a sectional view on line 44 of Fig. .2;

Fig. 5 is a detailed View of the latch bolt re.- tractor; and

Fig, 6 is a detailed view of the plunger mounted in the inside knob! To illustrate a preferred embodiment of my invention, 1 have shown a door lock comprising a case It of cylindrical shape, this case being adapted to contain'the latch bolt and actuating mechanism. therefor as will be hereinafter ex planned, and also being adapted, when inserted Within the bore I0 in the edge of the door, to pass through an opening ll (Fig. 2) in the body portion [2 of a cylindrical aligning tube adapted to be inserted in a bore [3 bored through the face of the door.

A latch bolt is reciprocably mounted in the case It, this bolt comprising a beveled head it and a stem 15, this stem passing loosely at its rear end through an opening it in a bolt retractor shown in Fig. 5. This 'retractor comprises a pair of members of substantially identical shape, each comprising a substantially semi-circular head,

which heads together form a disk-like member part I! of the retractor so that movement of the latter will carry the bolt therewith, although the bolt may move independently of the retractor,

the stem 15 sliding through the opening it.

In order to hold the retractor in extended position, a spring 21 acts between the disk H and a stop plate 22 within the lock case, the spring surrounding a post 23 which extends through an opening in the member H. In order to urge the bolt to projected position, a second spring 24 is disposed between the bolt head and the member [1. It will be seen, therefore, that when the bolt I4 is retracted by engagement with the strike plate of the door jamb it is not necessary to compress the relatively strong spring 26 in order to move the bolt head into the case. The stop plate 22 is held in place by a yoke 25 in serted into the rear end of the lock case, which yoke, as will be hereinafter explained, serves as a support for certain parts of the mechanism within the casing, this yoke being held in place by the screw 26,

Rotatably mounted in transverse openings in the yoke 25 are inner and outer rollback hubs 2'! and 28, these hubs carrying rollbacks 29 and 30 adapted to engage laterally turned lugs 3| and 32 carried by the retractor stems l 8 as shown more especially in Figs. 3 and so that, upon the turning of the rollbacks, the retractor will be drawn rearwardly and the latch bolt retracted into the case.

The aligning tube which supports the knob and spindle mechanism which will now be described is also of cylindrical shape and comprises a main body portion l2 and reduced end portions or sleeves '38 and 39, these sleeves being threaded exteriorly and provided with internal bores of the same size as that of the main portion l2, which latter bore is at right angles to the opening II which receives the case Id.

The outer knob is shown at 40, this knob having a shank 42 rotatably mounted within the sleeve 39 and retained therein by means of a key 43 which enters an annular slot 44 in the knob shank and is disposed in an opening 45 in the outer edge of the central portion l2 of the aligning tube. Mounted in the knob is a key-operated lock shown conventionally at 46, which will be hereinatfer referred to.

The inner knob is shown at 41 and is likewise provided with a shank 48 rotatably mounted in the sleeve 38 and retained in place by a key 49 carried upon the end of a fiat spring 58 secured to the knob shank 48, the key 49 being received in a slot 5| in the body portion l2 of the aligning tube so as to permit rotation of the shank while preventing it from being withdrawn in a longitudinal direction. The sleeve 38 is provided with an opening 52 through which a tool may be inserted to depress the spring 50 and release the knob, when desired.

Escutcheons or roses 53 are mounted at the inner and outer surfaces of the door, these members being held in place by sleeves 54 threaded upon the sleeve portions 38 and 39 of the align ing tube so that the roses and sleeves 54 cover the ends of this tube.

As shown more particularly in Figs. 1 and 2, a knob spindle is provided which extends through the case of the lock mechanism and engages one of the rollback hubs to rotate the same upon the turning of the inner knob. This spindle is provided with a squared portion 55 non-rotatably and slidably received within a correspondingly shaped opening in the knob shank 48 and also non-rotatably received in a similarly shaped opening in the inner rollback hub 21, the spindle being urged toward the knob by the spring 58 which surrounds the spindle and acts against a washer 59 adjacent one end of the spindle.

Adjacent its other end, the spindle is reduced in size as shown at 80, and upon this reduced end is rotatably mounted a sleeve 6| having a squared portion 62 disposed in a similarly shaped opening in the outer rollback hub 28 and a second squared portion 63 disposed within a similarly shaped opening 64 in the shank of the outer knob so that when the outer knob is turned, the sleeve 6i will be rotated and, if the parts are in the position shown in Fig. 1, will rotate the outer rollback 30 and retract the bolt.

The squared portion 56 of the spindle and the squared portion 62 of the sleeve 6| are slidably received in openings in the lock case which will, of course, permit rotation as well as longitudinal movement of the spindle portion 58. The reduced end 60 of the main spindle projects from the sleeve 6| and is connected with a key-operated lock 48 in the outer knob so that the spindle may be rotated by this lock when the sleeve El and outer knob are dogged against rotation.

A locking plate 65 (Figs. 2 and 4) is provided in the main portion l2 of the aligning tube just without the casing 18 of the latch bolt, this plate being provided with wings 66 secured in recesses 61 provided in the walls of the tube so that the plate may be rigidly secured in place. This plate is provided with an enlarged opening 68 which is of non-circular shape so that it may non-rotatably receive the portion 62 of the sleeve 6!.

It may here be stated that the latter sleeve is disposed between shoulders 69 and 69 on the spindle portion 60 so that while it is permitted to rotate upon the spindle, it is prevented from longitudinal movement with respect thereto. The spindle may be moved longitudinally of its axis from the position shown in Fig. 1 to that shown in Fig. 2 and when in the position shown in the latter figure, the squared portion 62 is engaged in the opening 68 of the locking plate 65 so as to prevent rotation of the sleeve and, therefore, prevent rotation of the outer knob and knob shank.

To move the spindle from one position to the other, a plunger or stem 78 is mounted in the inner knob 41 for longitudinal movement and connected to the end of the spindle. This member projects from the knob and is provided with a manually engageable part H by which the user may actuate it. As shown in Figs. 1, 2 and 6, one end of this member is disposed within the bore of the knob shank 48 and is provided with a helically disposed slot 12 in which is received a pin 13 secured to the knob shank. A small projection 14 may be provided in the slot 12 to retain the plunger in its inner position. It will be apparent, therefore, that upon rotation of the plunger 18 by the manually engageable part H, the plunger will be caused to move inwardly and thus effect longitudinal movement of the main spindle and the sleeve 6|.

With the parts in the position shown in Fig. 1 of the drawings, either of the knobs is free to rotate. The inner knob 41 will efiect rotation of theknob shank 48 and of the spindle portion 56 to turn the inner rollback 29 and retract the bolt. Rotation of the outer knob eiTects rotation of the knob shank 42 and, thus, rotation of the sleeve 6!, and, the squared portion of this sleeve being non-rotatably engaged with the outer rollback hub 28, the bolt will be retracted by rotation of the outside knob.

When it is desired to dog the outside knob against rotation, the spindle is-moved inwardly from the position shown in Fig. '1 to the position shown in Fig-fiend it will'be noted that in this position of the parts, while the portion 56 of the spindle still engages the rollback 21 so that this rollback may be operated by the inner knob, the squared portion 62 of the sleeve sln'ow lies Within the opening 68 of the locking plate 6.5 so that the sleeve 6! islocked againstiotation. As this sleeve is nonrotatably engaged in the outer knob shank 42, the outer knob will be dogged against turning. In this position of the parts, the latch bolt may only be retracted from the outside by use of the proper key in the lock 46, as the main spindle will still be free to turn within the sleeve (ii. The spindle may be retracted to its original position by rotating the plunger 10 in the proper direction, the spring 58 returning the spindle to the position shown in Fig. 1.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to the details shown, but is capable of modification and Variation within the spirit of the invention and Within the scope of the claims.

What I claim is:

1. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob only to be rotated thereby, a bolt-actuatin sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, means to move-said sleeve longitudinally of its axis from one position to another, means to dog said sleeve against rotation in one of said positions, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is clogged against rotation.

2. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, means to move said spindle and sleeve longitudinally of the spindle axis, a member fixed with respect to the casing to engage said sleeve and dog it against rotation, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

,3. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, a member fixed with respect to the lock case, said member having an opening to non-rotatably receive a part of said sleeve when the latter is moved toward the outer knob, and a key-operated member in the outer knob connected to said spindle to 1'0- tate the latter when the sleeve is dogged against rotation.

4. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing 2 havin a non-circular portion, a member fixed with respect to the case and having an opening to non rotatably receive said portion, manuallyengageable means for moving said spindle and sleeve to engage said portion in said opening and dog the sleeve against rotation, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

5. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, said sleeve having a non-circular portion, a member fixed with respect to the case and having an opening to non-rotatably receive said portion, means for moving said spindle and sleeve to engage said portion in said opening and dog the sleeve against rotation, said means comprising a plunger mounted in the inner knob, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

6. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, said sleeve having a non-circular portion, a member fixed with respect to the case and having an opening tonon-rotatably receive said portion, means for moving said spindle and sleeve to engage said portion in said opening and dog the sleeve against rotation, and means for retainin said sleeve in dogged position, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

7. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected .to the outer knob for rotation thereby, said sleeve having a non-circular portion, a member fixed with respect to the case and havin an opening to non-rotatably receive said portion, means for moving said spindle and sleeve to engage said portion in said opening and dog the sleeve against rotation, and spring means for urging said sleeve in a direction to free it from said member, and a key-operated member in the outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

8. In a door lock having a casing, a bolt reciprocably mounted therein, and inner and outer knobs operatively connected to the bolt to retract the same, a bolt actuating knob spindle passing through the case and connected to the inner knob to be rotated thereby, a bolt-actuating sleeve rotatably mounted on the spindle and connected to the outer knob for rotation thereby, means to move said spindle and sleeve longitudinally of the spindle axis, and a member fixed with respect to the case to engage said sleeve and dog it against rotation, said member comprising a locking plate mounted adjacent the wall of the case and having an openin non-rotatably receiving said sleeve, and a key-operated member in the-outer knob connected to said spindle to rotate the latter when the sleeve is dogged against rotation.

GEORGE W. WARDWELL, J R.

References Cited in the file of this patent UNITED STATES PATENTS 5 Number Name Date Schlage Apr. 28, 1936 Schlage Sept. 1'7, 1940 Schlage Oct. 20, 1942 Voight Dec. 11, 1945 Wardwell Feb. 14, 1950 

